USCG USCG ROR
Set 7 • Question #391 of 475
Launch Interactive Practice Room BOTH INTERNATIONAL & INLAND The rules concerning lights shall be complied with in all weathers from sunset to sunrise. The lights __________.
A
shall be displayed in restricted visibility during daylight hours
✓ Correct Answer
B
need not be displayed when no other vessels are in the area
C
shall be set at low power when used during daylight hours
D
need not be displayed by unmanned vessels
USCG NMC Regulatory Explanation
Under Inland Navigation Rules, for the condition where 'The rules concerning lights shall be complied with in all weathers from sunset to sunrise. The lights', the correct requirement is: 'shall be displayed in restricted visibility during daylight hours'. This standard ensures clear navigational intent and collision avoidance.
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